What is the difference between Mobile Passport and Mobile Passport Control (MPC)?

The Mobile Passport App can be downloaded from the App Store and Google Play Store. Travelers may use the app to digitally submit passport information and answers to CBP’s questions verifying biographic and flight information on their mobile device, eliminating the need for shared touchpoints, such as paper forms and kiosks. The app does not require pre-approval and is officially authorized by U.S. Customs and Border Protection (CBP). Mobile Passport Control (MPC) is a U.S. Customs and Border Protection program that allows authorized mobile apps to streamline a traveler’s entry into the United States.